Yah, get to fly Business Class for less then Economy ticket

In my article A Little Bit Of This and A Little Bit Of That Vol.1, Chapter V - I  shared that I was told by a MAS representative that if one is intending to visit Paris and London, it'll be cheaper if one was to fly from KL to London and then take the return flight back to KL from Paris. Reason being, the airport tax imposed at London Heathrow is very high. And I was told one has to pay RM600 when upgrading to Business Class for flight London to KLIA.

In the same article mentioned above, I shared that I had to pay USD45 and USD29.80 to upgrade my son's and sister tickets from Paris to KL (they bought JFK-CDG-KL). And guess what? I also bought my daughter return Economy ticket KL/Paris and managed to upgrade her return flight Paris to KL to Business Class without paying a sen!!! And in my article I have an image that summarized how much I paid for surcharges and taxes for the "FREE" Business Class KL to Paris and London to KL.

Now, few months ago my uncle did manage to upgrade her daughter's London to KL flight to Business Class (her ticket Economy return KL/London) for FREE (i.e. no additional surcharge or taxes)!!!

So Bro, you mentioned RM600 per person for the return. Is it from London?

Sometimes MAS only deduct 35k EM (No TAX) for 1 way ticket
Sometimes 35k EM + RM300 CDG-KUL (NOV 2014)
Sometimes 35k EM + RM475 CDG-KUL (DEC 2014)

not sure how they calculate the tax